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 American Standard Flush Valve #4 old style vs. #4 new style
Author: natron (NE)

I have an old American Standard One-Piece Toilet (2149). It has the old cannister-type flush valve. It is leaking and I want to replace it. I know that an old-style #4 flush valve (47086-0700) will work. However, the new-style #4 flush valve (47107-0070A) is a lot cheaper and more readily available. They look identical to me. Anyone know the difference? Are they more-or-less interchangeable?



Edited 2 times.

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: hj (AZ)

the original #4 brass replacement flush valve #3156 comes with the three #726 hole plugs you will need to seal the bolt holes in the bottom of the tank. The two you name do not appear to come with them.

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: natron (NE)

The 47086-0700 (older model) includes the plugs. But you do raise a good point because the newer model does not include them. However, I found a couple online vendors that sell just the plugs for around a buck+shipping. Since the 47107-0070A is about $25 cheaper, I could easily buy the plugs separately and still come out well ahead. That is, IF the main assemblies are the same on both models. Anyone know if they are?

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: hj (AZ)

The main requirement is how they secure to the toilet and both use the "internal toggles" so there should be no difference in operation.

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: LemonPlumber (FL)

Both the origination and lift lengths are different.be aware of the bouncing to seal flush valve.Pay the few bucks more and relax.You know this dinosaur should be replaced with anew low gallon-age type?

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: hj (AZ)

quote; You know this dinosaur should be replaced with anew low gallon-age type?

At least you know this "dinosaur" will not get diarrhea or puke all over your floor.

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: natron (NE)

Yeah, I have considered that. I have two of these toilets (the other one seems to have been converted from the cannister flush valve some time before I bought the house last year). That is why I was just looking for an economical fix for now, because if it is going to cost me $50 I might be better off investing that money in a new, more efficient toilet.

However, I have read that these toilets don't overflow. If that is, indeed, the case, as HJ suggested, then that is worth something.

I don't even think they make the 47086-0700 (older flush valve) anymore. It is only available on specialty plumbing sites (which is probably why the price is higher). So if these flush valves are not interchangeable it probably won't be long before I won't even be able to buy parts for this toilet.

This is not really relevant to the issue at hand but I can't believe how low this style of toilet sits. I'm 6'1" so that took some getting used to.

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: LemonPlumber (FL)

HJ.newer toilets are much to ?/whats seemed to be a surprise\ much better solid waste units\All of them.See manufacturers sell off brands?Yes four gallons less water per flush?at least makes this a easy and for /bad back up.purple trumps my cards .so if the poster holds black,he still is beat by the new decks black cards. ?he saves the cost of playing with exactly what he wanted to win!!!Sorry reference to color match /the only reason not to update\.

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 Re: American Standard Flush Valve #4 old style vs. #4 new style
Author: natron (NE)

I ended up buying a square of red rubber gasket material from Ace Hardware and I cut out my own circle gasket for the end of the cannister flush valve. Working like a charm so far. I'm still interested in a possible upgrade to more efficient toilets, but at least now I don't have to do it in a rush.

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